the Men's Health team has tested more than 50 different underwear brands (and over 100 individual pairs), from buzzy upstarts like Skims, down to tried-and-true labels like Calvin Klein.

We've all made the mistake of wearing the wrong underwear for working out-dressed ... Keep things classic and stick to something from Calvin Klein. This one blends the softness of cotton with ...

The thirst trap moment in question came from Bieber's boxers, which were almost soaking wet and see through from the water.

Calvin Klein got his start in spring of 1968 ... overseeing creative for the entire brand including women’s, men’s, jeanswear, underwear, and fragrance.